RECON: TNO occultation with 13JD65

Event between 13JD65 and star GA0780:05648928 with event index number of 1990161

Geocentric closest approach at 2022/05/06 09:23:43 UTC

J2000 position of star is 16:56:13.0 -11:32:14
Equinox of date position of star is 16:57:27.1 -11:34:15
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 144 degrees from the moon. Moon is 26% illuminated.
TNO apparent brightness V=23.8

[RECON map]
TNO is 35.7 AU from the Sun and 34.8 AU from the Earth.
The TNO is moving 20.9 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 238 seconds.
The 1-sigma cross-track error in the shadow position is 2254 km.
The sky-plane scale is 25263.8 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=136.8 km assuming a 5% albedo -- 6.6 sec chord
Diameter=55.8 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 13JD65, (2022/05/06 09:24UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:46.9 -26:28:47  0.9 16.18 143
13Zet Oph      16:38:23.5 -10:36:38  2.6  4.78 139
PPM 232375     16:58:40.3 -10:59:50  6.3  0.65 144
PPM 232323     16:56:27.0 -11:20:25  8.1  0.34 144
PPM 232340     16:56:56.7 -11:27:50  9.2  0.17 144
13JD65         16:57:27.6 -11:34:16 16.9       144
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 3.8 sigma about the mid-time.
The median site spacing is 14.8 km RECON observability=1.0 and success probability=12.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:24:41 -14.5 AT Down 26.2 185.9 Low 09:09:41 - 09:39:41 2029
Kamloops 09:25:26 -20.1 Dark Down 27.3 170.2 Low 09:10:26 - 09:40:26 1684
Kelowna 09:25:23 -20.6 Dark Down 28.2 171.2 Low 09:10:23 - 09:40:23 1659
Peachland 09:25:23 -20.8 Dark Down 28.3 170.8 Low 09:10:23 - 09:40:23 1647
Summerland 09:25:23 -20.9 Dark Down 28.4 170.9 Low 09:10:23 - 09:40:23 1640
Penticton 09:25:23 -20.9 Dark Down 28.5 171.0 Low 09:10:23 - 09:40:23 1639
Oliver 09:25:23 -21.2 Dark Down 28.9 171.0 Low 09:10:23 - 09:40:23 1619
Anarchist Mountain Observatory 09:25:22 -21.3 Dark Down 29.1 171.2 Low 09:10:22 - 09:40:22 1615
Tonasket 09:25:22 -21.6 Dark Down 29.4 171.1 Low 09:10:22 - 09:40:22 1595
Okanogan 09:25:23 -22.0 Dark Down 29.7 170.9 Low 09:10:23 - 09:40:23 1573
Brewster 09:25:24 -22.3 Dark Down 29.9 170.6 Low 09:10:24 - 09:40:24 1553
Manson/Chelan 09:25:25 -22.6 Dark Down 30.1 170.2 Up 09:10:25 - 09:40:25 1533
Wenatchee 09:25:26 -23.1 Dark Down 30.5 170.0 Up 09:10:26 - 09:40:26 1501
Victoria 09:25:36 -22.8 Dark Down 29.0 166.7 Low 09:10:36 - 09:40:36 1497
Ellensburg 09:25:26 -23.5 Dark Down 30.9 169.7 Up 09:10:26 - 09:40:26 1472
PNWRO 09:25:20 -24.0 Dark Down 32.1 171.4 Up 09:10:20 - 09:40:20 1449
Yakima 09:25:26 -23.9 Dark Down 31.3 169.6 Up 09:10:26 - 09:40:26 1447
Toppenish/White Swan 09:25:26 -24.0 Dark Down 31.5 169.8 Up 09:10:26 - 09:40:26 1438
Goldendale 09:25:27 -24.7 Dark Down 32.0 169.2 Up 09:10:27 - 09:40:27 1394
Dunrhomin 09:24:26 -23.7 Dark Down 37.9 187.6 Up 09:09:26 - 09:39:26 1393
CU-SBO 09:24:26 -23.9 Dark Down 38.2 187.5 Up 09:09:26 - 09:39:26 1374
The Dalles 09:25:28 -25.0 Dark Down 32.2 168.8 Up 09:10:28 - 09:40:28 1372
Maupin 09:25:27 -25.3 Dark Down 32.6 168.9 Up 09:10:27 - 09:40:27 1348
Sisters 09:25:29 -26.3 Dark Down 33.4 168.2 Up 09:10:29 - 09:40:29 1281
Bend 09:25:28 -26.4 Dark Down 33.7 168.5 Up 09:10:28 - 09:40:28 1272
Oregon Observatory 09:25:29 -26.6 Dark Down 33.8 168.3 Up 09:10:29 - 09:40:29 1258
North Lake 09:25:26 -27.1 Dark Down 34.6 168.8 Up 09:10:26 - 09:40:26 1230
Lakeview 09:25:24 -27.9 Dark Down 35.7 169.3 Up 09:10:24 - 09:40:24 1173
Chiloquin 09:25:30 -28.0 Dark Down 35.1 167.6 Up 09:10:30 - 09:40:30 1162
Klamath Falls 09:25:30 -28.2 Dark Down 35.4 167.7 Up 09:10:30 - 09:40:30 1141
Cedarville 09:25:23 -28.4 Dark Down 36.3 169.5 Up 09:10:23 - 09:40:23 1134
Fall River/Burney 09:25:28 -29.2 Dark Down 36.6 167.9 Up 09:10:28 - 09:40:28 1070
Susanville 09:25:25 -29.6 Dark Down 37.4 168.7 Up 09:10:25 - 09:40:25 1045
Gimple 09:25:26 -29.9 Dark Down 37.6 168.4 Up 09:10:26 - 09:40:26 1021
Greenville 09:25:26 -29.9 Dark Down 37.6 168.3 Up 09:10:26 - 09:40:26 1019
Portola 09:25:25 -30.1 Dark Down 38.0 168.9 Up 09:10:25 - 09:40:25 1008
Reno 09:25:22 -30.1 Dark Down 38.3 169.6 Up 09:10:22 - 09:40:22 1006
Quincy 09:25:26 -30.1 Dark Down 37.8 168.3 Up 09:10:26 - 09:40:26 1004
Yerington 09:25:19 -30.4 Dark Down 39.0 170.3 Up 09:10:19 - 09:40:19 983
Carson City 09:25:21 -30.4 Dark Down 38.7 169.6 Up 09:10:21 - 09:40:21 981
Tonopah 09:25:11 -30.6 Dark Down 40.1 172.6 Up 09:10:11 - 09:40:11 966
Gardnerville 09:25:21 -30.6 Dark Down 38.9 169.6 Up 09:10:21 - 09:40:21 965
Hawthorne 09:25:17 -30.6 Dark Down 39.5 170.9 Up 09:10:17 - 09:40:17 964
Lee Vining 09:25:18 -31.3 Dark Down 40.0 170.2 Up 09:10:18 - 09:40:18 911
Indian Springs 09:25:04 -31.3 Dark Down 41.7 174.4 Up 09:10:04 - 09:40:04 897
Beatty 09:25:08 -31.4 Dark Down 41.3 173.1 Up 09:10:08 - 09:40:08 894
Bishop 09:25:15 -31.6 Dark Down 40.7 171.1 Up 09:10:15 - 09:40:15 886
Henderson 09:25:00 -31.5 Dark Down 42.3 175.3 Up 09:10:00 - 09:40:00 875
Patrick 09:24:53 -31.5 Dark Down 43.0 176.7 Up 09:09:53 - 09:39:53 859
Kingman/Dolan Springs 09:24:53 -31.8 Dark Down 43.2 176.4 Up 09:09:53 - 09:39:53 839
Laughlin/Bullhead City 09:24:53 -32.0 Dark Down 43.2 175.7 Up 09:09:53 - 09:39:53 828
Mohave Valley 09:24:53 -32.3 Dark Down 43.5 175.7 Up 09:09:53 - 09:39:53 807
George/Scottsdale 09:24:46 -32.1 Dark Down 44.7 179.3 Up 09:09:46 - 09:39:46 781
Lake Havasu City 09:24:53 -32.5 Dark Down 43.9 176.0 Up 09:09:53 - 09:39:53 781
Parker 09:24:53 -32.8 Dark Down 44.2 176.0 Up 09:09:53 - 09:39:53 754
Calipatria 09:24:53 -34.2 Dark Down 45.2 174.2 Up 09:09:53 - 09:39:53 661
Idyllwild 09:25:06 -34.2 Dark Down 44.5 172.8 Up 09:10:06 - 09:40:06 658
Wildwood 09:25:14 -34.6 Dark Down 43.9 170.3 Up 09:10:14 - 09:40:14 635
Yuma 09:24:53 -34.2 Dark Down 45.7 175.5 Up 09:09:53 - 09:39:53 635

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 13JD65, (2022/05/06 09:24UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.18 143
13Zet Oph      16:37:09.6 -10:34:01  2.6  4.78 139
PPM 232375     16:57:26.0 -10:57:50  6.3  0.65 144
PPM 232323     16:55:12.6 -11:18:21  8.1  0.34 144
PPM 232340     16:55:42.2 -11:25:47  9.2  0.17 144
13JD65         16:56:13.0 -11:32:14 16.9       144
Positions are for J2000

Event circumstances last updated at 2022/03/14 01:02:07 UT

Marc W. Buie, Southwest Research Institute

RECON